erber



'KNO MOdSL) 2 Sheets-Sheet 1.

C. ERBER &*C. DIETRICH. PETROLEUM LAMP PoR RAILWAY GARRIAGLS.

No. 580.970. PatentedApr. 20,- 1897.

2 Sheets-Sheet 2.;

(No Model.)

C. ERBER 8v C. DIETRICH. PETROLEUM LAMP PoR RAILWAY GARRIAGES.

No.: 580,970. PatentedApr. 20, 1897.

000000 nooo 0001000 Q0 D 0B o-oa O G0000 Ellyn/IETS A UNiTnD STATES CARL ERBER AND CARL DIETRICH, OF BUDA-PESTH, AUSTRIA-HUNGARY.

PETROLEUM-LAMP FOR RAILWAY-CARRIAG ES.

SPECIFICATION forming part of Letters Patent N0. 580,970, dated April 20, 1897.

Application led March 30, 1896. Serial No. 585,477. (No model.)

To all whom t Wmy concern.'

Be it known that we, CARL ERBER and CARL DIETRICH, directors of the Ungarische Metallwaaren und Lampenfabriks Aktien Gesellschaft, subjects of the Emperor of Austria-Hungary, and residents of Buda-Pesth, Kbauya, Austria-Hungary, have invented certain new and useful Improvements in Petroleum-Lamps Jior Railway-Carriages, of which the following is a specification.

This invention relates to petroleum-lamps for railway-carriages which during the greatest storln will burn quietly and be equally ventilated during the running as well as on the stoppage of the train, as the petroleumreservoir can never get warm, these advantages being secured by the regulation of the flame and of the admission of oil from the interior as well as from the roof of vthe carriage, and generally by the Whole arrangement of the lamp.

The annexed drawings show how the invention is applied.

Figure 1 is a general elevation of the lamp; Fig. 2, a vertical section through the burner; Fig. 3, a section on line 0o oc, Fig. 2; Fig. 4, a section on line y y, Fig. 2; Fig. 5, side view of part of the interior of the lamp; Fig. 6, a section on line z z of Fig. 5; Figs. 7 to 14, details of the lamp; Fig. 15, modification of Fig. 5; Fig. 16, modification of Fig. 8, and Fig. 17 detail of burner.

The exterior form of the casing of this lamp, as well as the inner construction, (with exception of the movable interior part of the lamp,) is like other carriage-lamps, the essential improvements being in the air-conducts. The casing of such a lamp consists, as known, of the under part CL3, Fig. 1, placed in the carriage-ceiling, provided with the usual projecting ring b3, which rests upon the carriage-roof and is joined to the free standing upper part e3 of the casing by means of the hinge-joint c3 and spring-lock di. I-Iitherto the openings f3 and g3 on this upper part e3, which conduct air to the burner, were surrounded only by two simple plate-rings, which were open in the upper and the lower part and parallel to the casing, so that a strong wind caught in the rings entered with vehemence in the casing and rendered the llame unsteady and irregular.

In the present invention, as shown in Figs. 2 and 4, these protecting-rings h3 and i3 of the openingsj15s and g3 are provided on their upper and under parts with horizontal iiat rings j 3, so that these protecting-rings receive a E-section. These rings are provided on the iiatsj 3, close to the wall of the casing, with narrow and regularly-arranged openings 7c3, through which even during the greatest storm the air can pass to the openings f3 and gg with a completely-broken force. j

Further improvements consist in the upper part of the casing of the lamp on the chimney Z3 for the escape of the burning gases. Close under the upper border of the latter is provided a collar m3, which causes the wind attacking the border of the chimney Z3 to be partly deflected, while only a small part passes under the roof n3 of the chimney Z3. The cap p3, coverin g the security-cones o3 inthe chimney and carried by the chimney-roof n3, is no longer an unperforated disk with a smooth cylindrical border projecting downward, but the under border fof it is turned upward in form of a channel, while the flat part of the cap p3 is provided with numerous openings r3, which are each surrounded by an annular deep groove s3. The turning upward of the border Q3 prevents almost completely the entrance of the wind, which passes eventually from the roof n3 downward, while the openings rS allow the combustion gases to escape easily. The hollows sscatch the Wind, so that it cannot enter the openings r3. The most essential part of the lamp is formed by the new part placed in the under part of the casing, Figs. 2 and 5. This consists of a double cone t3, which serves on one side forlthe admission of the air for combustion and Aon the other side to isolate the said air entering from above from the air for ventilation entering from below for the petroleum-reservoir. For this purpose Athis double cone and under part t3 is Well tightened on its upper border simultaneously with the border of the under part d3 of the casing by a felt ring us, placed in the under border of the upper part e3 of the casing. On the under border the under part is joined to the interior by a groove o3, the top a of the burner-space b carrying a chimney w3 for the escape of the gases of combustion. With this groove c3 the part t3 is seated IOO upon the border of the glass t, which is carried by a conical flange-like ring x3, projecting inward on the border of the under part of the casing e3. This ring .r3 is provided on its circumference with openings .1/3, through which the air for ventilation enters around the part t3, then to pass under the upper border of the latter through openings .23, covered by the protecting-cover d of the under part a3 of the casing, just over the ring Ui. The cover d of the comlnistion-reom l; is isolated from the tlame by a reflector c, distanccd from it so that the cover d is only slightly warmed, and also the part t cannot get warm even on a long stoppage of the train. The reflector c is so arranged that it forms by its [lat part the continuation of the ring 0;, which carries the glass bell t, which acts equally as a reflector.

The annular oil reservoir c is arranged around the upper cone of the under part g with a free space and kept on by means of thc crossbars f, Fig. 5. By this arrangement the oilreservoir e is well distanced from the burner and can never get warm. Also, the oil-reservoir is provided on its cover with openings g, which permit any gases developing' to escape. In addition to this oil-reservoir au annular receptacle 7L may be ar1anged,which of course is considerably smaller. In such is a chamber t', that can be reached from the outside, in which enters at the upper part the back end of the wick-holderj. From the latter projects the wick end 7; to the bottom of the chamber z', in which the pushing and feeding arrangement of the burner-wick is placed. The wick 7U' runs in the curved wick-holder j, which passes from the chamber 1 to the burner.

The burner consists of a tube d, which is fixed at one end to the reservoir h and passes through the under cone of the part t, the cover Cl, and the refiector c and is shaped at its free end vertically. This end is closed by a burner-cap Z4, provided with a horizontal slit 7c" and fixed by a spring m4, After loosening the latter it can be opened on a hingejoint al. Close before its free end the tube d is inclosed by a vertical sieve-wall o", beyond which advances the end of the wiekholder j, provided with a border pl. The back end of the wick-holder j projects into the chamber i, from where also the introduction of the wick 7o is effected. For this purpose this end of the wick-holderj is provided on its upper part with longitudinal slits g4, Fig. 17, in which gear the small toothed wheels which are arranged on an axle s", repesing in bearings 1" across the wick-holder j, and which move the wick 7s on turning sl. This turning is effected by a vertical screw u", which gears in the toothed wheel r", seated upon one end of the axle s". The shaft w1 of this screw ttl is seated in the upper part in the cover of the chamber t' and in its lower part in a socket Q54, welded to the bottom of the same, from where it can be operated by means of the square-headed rod y1. The air necessary for the burning of the flame passes from the interior of 3 directly to the burner, for which purpose the tube d of it is provided with many holes m between the part t and the cover. The air enters through the latter and passes through the sieve-wall o1 to the llame. The feeding of the wick la is effected by the following construction: The oil passes from the reservoir c through a small tube o into the chamber e', where it is sucked up by the wick 7.:. The passing of the oil can be regulated or completely stopped, Figs. 5 and l5, by a cock p, arranged on the tube 0 between the oil-reservoir c and the reserve receptacle 71,. For this purpose the top of the cock l) carries a toothed are q, Fig. l0, which engages with a toothed disk fr, Fig. f), which is fixed on a vertical shaft s, and by means of the latter it can be turned from the inside or the outside of the carriage, as this shaft passes through the receptacles 7L and c and through the part tg.

To avoid the toothed disk yr and the toothed are q, the cock j) can also be arranged as shown in Fig. l5, so that the shaft s passes through the axle of the cock 7) while the opening of the latter is horizontal.

The superfluous oil passes from the chamber yL' through side openings t" of the same, Fig. G, into the reserve receptacle t, and therefore an overiiowing cannot take place. A further regulating arrangement for the regular sucking up of the wick consists, as shown in Figs. ll to lit, in different modes of making the wick end 7s. The most suitable is a clamp 7,5, Fig. la, one arm of which is provided on the inside with grooves 7a2. This clamp 7U" is attached across on the wick 7U' from the side and therefore presses the latter together, so that the oil can only pass through the grooves 7&2, Figs. 12 and 13. Instead of the clamp 7U" the control of the wick 7c can be eifected by the wick-movi ng wheels t* by enlarging the latter, Fig. 13, to a large iluted roller which is provided with grooves j?, corresponding to the grooves 7a2 in the pressers 7s.

The controlling of the wick can also be effected by means of smooth pressers, rollers, or similararrangements without changing the character of the invention. This part of our invention is applicable to all other lamps having tlat or round wicks. By using luted rellers i" the wick-holderj can be provided with longitudinal grooves Z, so that it has the section shown in Fig. 1l.

The lamp can be lighted from the inside of the carriage, and for this purpose the glass bell t has en its lower part a small opening u, Fig. 2,which is closed by a ball t', lying freely en the inside,which can easily be pushed sideward with the fuse and by itself rolls back upon the opening yu after the lamp has been lighted. Instead of this arrangement the bell can be provided on its under part with a metal. cap w, Figs. 7 and 8, having an opening u to be closed by a slide 2f, while the latter has an opening, so that by turning the IOO IIO

slide z the opening u is closed; also, for closing the opening u may be used a lens n, Fig. 16, which distributes the light and Which is held in a frame n2 and opens on a hinge-joint n' and is provided with the fastener m.

Ve claim as our invention in petroleumlainps for railway-carriagesl. The combination with the chimney Z3 and interior cone o3 of the cap p3 to said cone, the said cap having a downwardly and upwardly turned border g3 around its edge and having holes r3, eaoh of which is surrounded by a groove s3 for the purpose set forth.

2. The combination with the lamp-body consisting of lower part a3 and upper part e3, 

